Claims
- 1. A single lens reflex camera comprising:
- a mirror box provided in a camera body, said mirror box comprising means for supporting a mirror, located on an optical axis of a photographing lens, for up and down movement, said mirror box and said mirror comprising a unit which is detachably attachable to a camera body;
- means for driving said mirror for up and down movement in accordance with a shutter release operation, said mirror driving means being operable when said driving means is charged, said mirror driving means being assembled to said mirror box;
- a diaphragm control mechanism for controlling an aperture size of a diaphragm, said diaphragm control mechanism mounted to a mounting member, separate from said mirror box, said mounting member and said diaphragm control mechanism comprising a unit which is detachably attachable to said camera body;
- charge/reset means for charging said driving means and for resetting said diaphragm control mechanism, wherein said charge/reset means charges said mirror driving means to render said mirror driving means operable, and reset said diaphragm control mechanism so that an aperture size of a diaphragm is changeable between a full open state and a smallest state;
- means for mounting said charge/reset means to said camera body; and
- said charge/reset means comprising means for mechanically and functionally connecting said mirror driving means and said diaphragm control mechanism.
- 2. The single lens reflex camera according to claim 1, said charge/reset means comprising a rotatable main diaphragm latching lever comprising said diaphragm control means which rotates to reset said diaphragm control mechanism.
- 3. The single lens reflex camera according to claim 2, said charge/reset means comprising a diaphragm resetting lever which rotates said main diaphragm latching lever in a reset direction.
- 4. The single lens reflex camera according to claim 1, further comprising a photographing lens mounted to said camera body, said diaphragm provided in said photographing lens.
- 5. The single lens reflex camera according to claim 4, said photographing lens comprising a diaphragm association lever which is associated with said diaphragm and which is biased in a stop-down direction of the diaphragm.
- 6. The single lens reflex camera according to claim 5, said diaphragm control mechanism comprising a slide plate which engages with said diaphragm association lever on said photographing lens.
- 7. The single lens reflex camera according to claim 6, said mirror driving means comprising a diaphragm restricting lever which resets said slide plate to an initial position, to open said diaphragm.
- 8. The single lens reflex camera according to claim 5, said mounting member, to which said diaphragm control mechanism is mounted, is secured to a front plate die casting of said camera body, and means for securing said mounting member to said camera body.
- 9. The single lens reflex camera according to claim 8, said mounting member comprising a panel secured to said front plate die casting, said securing means comprising set screws which secure said mounting member to said front plate die casting.
- 10. The single lens reflex camera according to claim 9, said panel comprising an auxiliary diaphragm latching lever coaxial with said main diaphragm latching lever and comprising said diaphragm control mechanism.
- 11. The single lens reflex camera according to claim 5, further comprising a rack supporting plate which is slidably mounted on a mounting panel, said rack supporting plate supporting a slide plate engagable by said diaphragm association lever of said photographing lens.
- 12. The single lens reflex camera according to claim 1, said mounting member comprising a rack supporting plate mounted for sliding movement on said mounting member, said mounting member further comprising a first gear which is in mesh with a rack formed on said plate, a second gear coaxial with said first gear, a rotatable pulse plate in mesh with said second gear, wherein rotation of said second gear is transmitted to said pulse plate, and means for detecting an aperture of said diaphragm in accordance with rotation of said pulse plate, said detecting means mounted on said mounting member.
- 13. The single lens reflex camera according to claim 12, further comprising a controller mounted in said camera body, and means for transmitting detection data output by said detection means to said controller.
- 14. The single lens reflex camera according to claim 13, further comprising an auxiliary diaphragm latching lever coaxially mounted with respect to a main diaphragm latching lever comprising said diaphragm control mechanism.
- 15. The single lens reflex camera according to claim 14, further comprising driving means for rotating said main diaphragm latching lever together with said auxiliary diaphragm latching lever in accordance with a command signal from said controller.
- 16. The single lens reflex camera according to claim 15, wherein said pulse plate is provided, on an outer peripheral surface, with latch teeth, wherein said main diaphragm latching lever is rotated by said driving means at a predetermined timing to engage with selected latch teeth to stop rotation of said pulse plate.
- 17. The single lens reflex camera according to claim 16, said driving means comprising a solenoid which is selectively energized in accordance with a control signal from said controller.
- 18. The single lens reflex camera according to claim 1, further comprising a single charging motor, said charging motor coupled to said charge/reset means.
- 19. The single lens reflex camera according to claim 18, further comprising a gear mounted for rotation about an axis and operatively coupled to said motor, said charge/reset means comprising drive means mounted for rotation coaxially with the rotation axis of said gear and operatively engaged with said mirror driving means and said diaphragm control mechanism.
- 20. The single lens reflex camera according to claim 19, said drive means comprising first and second cam surfaces.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3-102253 |
Oct 1991 |
JPX |
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Parent Case Info
This application is a continuation of U.S. patent application Ser. No. 07/944,317, filed Sep. 14, 1992, pending.
US Referenced Citations (6)
Foreign Referenced Citations (4)
Number |
Date |
Country |
881980 |
Nov 1960 |
GBX |
998197 |
Jul 1965 |
GBX |
1549509 |
Aug 1979 |
GBX |
2070259 |
Sep 1981 |
GBX |
Continuations (1)
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Number |
Date |
Country |
Parent |
944317 |
Sep 1992 |
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